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X-NUCLEO-IHM01A1
Stepper motor driver expansion board based on L6474 for STM32
Nucleo
Data brief
Description
The X-NUCLEO-IHM01A1 is a stepper motor
driver expansion board based on the L6474.
It provides an affordable and easy-to-use solution
for driving a stepper motor in your STM32 Nucleo
project.
The advanced current control of the L6474 and a
complete set of protection features offer high
levels of both performance and robustness.
The X-NUCLEO-IHM01A1 is compatible with the
Arduino UNO R3 connector, and supports the
addition of other boards which can be stacked to
drive up to three stepper motors with a single
STM32 Nucleo board.
Features
• Voltage range from 8 V to 45 V
• Phase current up to 3 Ar.m.s.
• Power OK and fault LEDs
• Advanced current control
• Fully protected power stage
• Up to 1/16 microstepping resolution
• Compatible with Arduino UNO R3 connector
• Compatible with STM32 Nucleo boards
• Suitable for multi-motor solutions
• RoHS compliant
March 2015
DocID026559 Rev 3
For further information contact your local STMicroelectronics sales office.
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www.st.com
VDD
D2
RED
R21
330R
R13
10K
VDD
A0
A1
A2
A3
A4
A5
DIR_1
CN9
CON-1x8
1x8 - pitch 2.54
0R
R1
DIR
NP
R2
DIR
NP
R3
100NF
C11
CON-1x6
1x6 - pitch 2.54
1
2
3
4
5
6
CN8
CON-1x8
1x8 - pitch 2.54
DIR_2
CON-2x19
IOREF
DIR_3
0R
R4
NP
R5
NP
R6
PWM
STCK
C4
NP
R24
R25
0R
R15
NP
3.3NF
TP2
NP
R23
0R
CN10
CON-2x19
NP
SDI
TP1
NP
R9
SPIMotor
NP
R8
SDI
R14
10K
VDD
CN5 CON-1x10
1x10 - pitch 2.54
0R
R7
SPI_NCK
SPI_CS
1
MOSI
3.3V
5V
GND
GND
VIN
VDD
1
1
2
3
4
5
6
7
8
2->3
CN6
1->2
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
SDO
NP
R11
R22
NP
CN3
CON-1x2
1x2 - pitch 2.54
NP
R10
SDO
C5
NP
SPI_MISO
+
R12
0R
8
7
11
10
30
26
27
25
10UF
+ C7
32
STBY_RESET6
31
FLAG
29
ADCIN
100NF
C6
VDD
C1
47UF 100NF
D7
GREEN C2
330R
R20
24
2
CS
CK
SDI
SDO
STCK
STBY_RES
FLAG
BUSY_SYNC
ADCIN
SW
OSCOUT
OSCIN
VDD
C3
D1
BAR43
3
13
1
C8
10NF
220NF
L6474PD
U1
CP
14
VBOOT
9
VREG
DGND
28
AGND
12
EPAD
37
VS
4
5
33
34
15
16
22
23
OUT2B
OUT2B
OUT1B
OUT1B
OUT2A
OUT2A
OUT1A
OUT1A
VSA
VSA
VSA
VSA
VSB
VSB
VSB
VSB
PGND
PGND
1
19
CN7
2
1
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
PWM_1
1
2
3
4
5
6
7
8
UART RX
UART TX
FLAG
PWM2
DIR2
DIR3
PWM3
DIR1
PWM_3
1
2
3
4
5
6
7
8
9
10
RESET EASY
PWM1
CS
MOSI
MISO
SCK
GND
AREF
SDA
SCL
PWM_2
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
MIRE3
OPTICAL_TARGET
MIRE2
OPTICAL_TARGET
MIRE1
OPTICAL_TARGET
20
21
18
17
35
36
2
3
VS
D4
100NF
C10
D5
D6
100UF
63V
+ C12
SDI
SDO
R4
R7
R10
R8
R11
R9
R12
R1
R4
R7
R12
SINGLE MOTOR
DIR
PWM
R1
R5
R19
2.2K
R2
R18
2.2K
R3
R17
2.2K
R6
R16
2.2K
YELLOW YELLOW YELLOW YELLOW
D3
100NF
C9
N°3
DocID026559 Rev 3
N°2
2/4
N°1
CN1
GND
Vin
A-
A+
B-
B+
MKDS1/6-3.81
3.81
6
5
4
3
2
1
1
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Schematic diagram
X-NUCLEO-IHM01A1
Schematic diagram
Figure 1. X-NUCLEO-IHM01A1 circuit schematic
X-NUCLEO-IHM01A1
2
Revision history
Revision history
Table 1. Document revision history
Date
Revision
Changes
18-Jun-2014
1
Initial release.
10-Sep-2014
2
Updated board photo in cover page.
30-Mar-2015
3
Updated title in cover page.
DocID026559 Rev 3
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X-NUCLEO-IHM01A1
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DocID026559 Rev 3
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